OAM Signal Sequence Initialization for Wireless Capacity
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting and receiving signals, particularly in supporting high communication capacity and reliability, especially in next-generation communication systems that require massive machine-type communications and low latency.
Innovation Solution
The implementation of a method and apparatus that utilize orbital angular momentum (OAM) based communication, where configuration information is received and used to initialize a sequence generator for signal transmission and reception, including resource configuration and OAM state information, to optimize signal transmission and reduce signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional signal transmission methods are used, then system compatibility is maintained, but communication capacity and spectral efficiency are limited
Solution Approach 1:
The patent changes the physical parameter of electromagnetic wave transmission by introducing orbital angular momentum (OAM) states as an additional degree of freedom. This allows multiple orthogonal signals to be transmitted simultaneously over the same frequency resource, thereby increasing communication capacity without requiring additional spectral resources or fundamental system architecture changes.
Solution Approach 2:
The patent adds a new dimension to signal transmission by utilizing the spatial structure of electromagnetic waves through OAM states. Instead of only using amplitude, frequency, and polarization dimensions, the system now exploits the azimuthal phase variation dimension, enabling multiplexing of multiple independent data streams in the same time-frequency resource.
2Productivity
If OAM based communication is implemented, then spectral efficiency is improved, but signaling overhead increases
Solution Approach 1:
The patent performs preliminary configuration by pre-defining OAM state mappings and resource allocations through higher-layer signaling. This allows the actual data transmission to proceed with minimal real-time signaling, as the OAM state relationships are established in advance, reducing the signaling overhead during active communication.
Solution Approach 2:
The patent introduces configuration information as an intermediary that carries OAM-related parameters. This intermediary layer abstracts the complex OAM state management, allowing the physical layer to efficiently utilize OAM multiplexing while the configuration layer handles the signaling overhead in a structured and optimized manner.
3Reliability
If OAM state information is extensively signaled, then communication reliability is improved, but signaling overhead increases
Solution Approach 1:
The patent applies partial signaling by transmitting only the necessary OAM state information required for reliable communication rather than all possible OAM parameters. This selective signaling approach maintains communication reliability by providing essential OAM configuration while avoiding excessive signaling overhead from redundant or optional parameters.
Data Source
AI summary
One embodiment relates to a next generation wireless communication system for supporting a higher data transmission rate than a 4th generation (4G) wireless communication system. According to one embodiment, a method for transmitting and receiving signals in a wireless communication system and a device supporting same may be provided, and another embodiment may be provided. A sequence generator related to generation of signals in a wireless communication system may be initialized on the basis of an OAM state of OAM-based communication. In addition, communication of the signals may be performed on the basis of the OAM-based communication.